MAX2038CCQ+TD datasheet(7/23 Pages) MAXIM

Part #	MAX2038CCQ+TD

Description	Ultrasound VGA Integrated with CW Octal Mixer

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Manufacturer	MAXIM [Maxim Integrated Products]

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Ultrasound VGA Integrated

with CW Octal Mixer

_______________________________________________________________________________________

7

Typical Operating Characteristics

(Figure 7, VCC = VREF = 4.75V to 5.25V, VGND = 0, PD = 0, VG_CLAMP_MODE = 1, fRF = 5MHz, capacitance to GND at each of the

VGA differential outputs is 60pF, differential capacitance across the VGA outputs is 10pF, RL = 1k

Ω, TA = 0°C to +70°C. Typical

values are at VCC = VREF = 5V, TA = +25

°C, unless otherwise noted.)

0

1.0

0.5

2.0

1.5

3.0

2.5

3.5

4.5

4.0

5.0

0

5.0

7.5

2.5

10.0 12.5 15.0 17.5 20.0

OVERDRIVE PHASE DELAY

vs. FREQUENCY

FREQUENCY (MHz)

VIN1 = 35mVP-P DIFFERENTIAL

VIN2 = 87.5mVP-P DIFFERENTIAL

GAIN = 20dB

-100

-90

-80

-70

-60

-50

-40

075

50

25

100 125 150 175 200

POWER-SUPPLY MODULATION RATIO

FREQUENCY (kHz)

VOUT = 1.5VP-P DIFFERENTIAL

VMOD = 50mVP-P, fCARRIER = 5MHz,

GAIN = 10dB

-80

-70

-60

-50

-40

-30

-20

-10

0

-15

-5

5

15

25

35

TWO-TONE ULTRASOUND-SPECIFIC

IMD3 vs. GAIN

GAIN (dB)

VOUT = 1VP-P DIFFERENTIAL

f = 10MHz

f = 2MHz

f = 5MHz

OVERLOAD RECOVERY TIME

MAX2038 toc07

DIFFERENTIAL

OUTPUT

2.0V/div

DIFFERENTIAL

INPUT

2.0V/div

400ns/div

f = 5MHz

OUTPUT 100mVP-P TO OVERLOAD

AND BACK TO 100mVP-P

-100

-80

-90

-60

-70

-40

-50

-30

-10

-20

0

-15

5

-5

15

25

35

SECOND HARMONIC DISTORTION

vs. GAIN

GAIN (dB)

VOUT = 1VP-P DIFFERENTIAL

f = 12MHz

f = 2MHz

f = 5MHz

-100

-80

-90

-60

-70

-40

-50

-30

-10

-20

0

-15

5

-5

15

25

35

THIRD HARMONIC DISTORTION

vs. GAIN

GAIN (dB)

VOUT = 1VP-P DIFFERENTIAL

f = 12MHz

f = 2MHz

f = 5MHz

OVERLOAD RECOVERY TIME

MAX2038 toc06

DIFFERENTIAL

OUTPUT

1.0V/div

DIFFERENTIAL

INPUT

1.0V/div

400ns/div

f = 5MHz

OUTPUT 1VP-P TO OVERLOAD AND BACK TO 1VP-P

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MAX2038CCQ+TD Datasheet(PDF) 7 Page - Maxim Integrated Products

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